Results 21 to 30 of about 6,563,661 (318)

On homotopy nilpotency of some suspended spaces

open access: yesPracì Mìžnarodnogo Geometričnogo Centru, 2021
A homological criterium from [Golasiński, M., On homotopy nilpotency of loop spaces of Moore spaces, Canad. Math. Bull. (2021), 1–12] is applied to investigate the homotopy nilpotency of some suspended spaces.
Marek Golasinski
doaj   +1 more source

Higher dimensional formal loop spaces [PDF]

open access: yes, 2020
If $M$ is a symplectic manifold then the space of smooth loops $\mathrm C^{\infty}(\mathrm S^1,M)$ inherits of a quasi-symplectic form. We will focus in this article on an algebraic analogue of that result.
Benjamin Hennion
semanticscholar   +1 more source

Symplectic homology of fiberwise convex sets and homology of loop spaces [PDF]

open access: yesThe Journal of Symplectic Geometry, 2019
For any nonempty, compact and fiberwise convex set $K$ in $T^*\mathbb{R}^n$, we prove an isomorphism between symplectic homology of $K$ and a certain relative homology of loop spaces of $\mathbb{R}^n$.
K. Irie
semanticscholar   +1 more source

Motivic infinite loop spaces [PDF]

open access: yesCambridge Journal of Mathematics, 2017
We prove a recognition principle for motivic infinite P1-loop spaces over an infinite perfect field. This is achieved by developing a theory of framed motivic spaces, which is a motivic analogue of the theory of E-infinity-spaces.
E. Elmanto   +4 more
semanticscholar   +1 more source

Positive geometry, local triangulations, and the dual of the Amplituhedron

open access: yesJournal of High Energy Physics, 2021
We initiate the systematic study of local positive spaces which arise in the context of the Amplituhedron construction for scattering amplitudes in planar maximally supersymmetric Yang-Mills theory. We show that all local positive spaces relevant for one-
Enrico Herrmann   +3 more
doaj   +1 more source

Diagrammar of physical and fake particles and spectral optical theorem

open access: yesJournal of High Energy Physics, 2021
We prove spectral optical identities in quantum field theories of physical particles (defined by the Feynman iϵ prescription) and purely virtual particles (defined by the fakeon prescription).
Damiano Anselmi
doaj   +1 more source

Equivariant localization and completion in cyclic homology and derived loop spaces [PDF]

open access: yesAdvances in Mathematics, 2017
We prove an equivariant localization theorem over an algebraically closed field of characteristic zero for smooth quotient stacks by reductive groups $X/G$ in the setting of derived loop spaces as well as Hochschild homology and its cyclic variants.
Harrison B. Chen
semanticscholar   +1 more source

Loops in twistor space [PDF]

open access: yesPhysical Review D, 2005
We elucidate the one-loop twistor-space structure corresponding to momentum-space MHV diagrams. We also discuss the infrared divergences, and argue that only a limited set of MHV diagrams contain them. We show how to introduce a twistor-space regulator corresponding to dimensional regularization for the infrared-divergent diagrams.
Bena, Iosif   +3 more
openaire   +2 more sources

Infinite loop spaces from operads with homological stability [PDF]

open access: yes, 2016
Motivated by the operad built from moduli spaces of Riemann surfaces, we consider a general class of operads in the category of spaces that satisfy certain homological stability conditions.
M. Basterra   +4 more
semanticscholar   +1 more source

Small-gain theorem for a class of abstract parabolic systems [PDF]

open access: yesOpuscula Mathematica, 2018
We consider a class of abstract control system of parabolic type with observation which the state, input and output spaces are Hilbert spaces. The state space operator is assumed to generate a linear exponentially stable analytic semigroup.
Piotr Grabowski
doaj   +1 more source

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